//
//  Scanner+FHIR.swift
//  HealthSoftware
//
//  Copyright 2020 Apple Inc.
//
//  Licensed under the Apache License, Version 2.0 (the "License");
//  you may not use this file except in compliance with the License.
//  You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.

import Foundation

public extension Scanner {
	
	func hs_scanCharacters(from characterSet: CharacterSet) -> String? {
		#if os(Linux) || os(Windows)
		return scanCharacters(from: characterSet)
		#else
        
		if #available(macOS 10.15, *), #available(iOS 13, *), #available(watchOS 6, *), #available(tvOS 13, *) {
			return scanCharacters(from: characterSet)
		}
		var string: NSString?
		if scanCharacters(from: characterSet, into: &string), let string = string {
			return String(string)
		}
		return nil
		#endif
	}
}
